Accession Number : ADD001577

Title :   Lasing Dyes.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Schimitschek,Erhard J ; Trias,John A ; Celto,John E

Report Date : 24 Jun 1975

Pagination or Media Count : 4

Abstract : This invention concerns a dye comprising a 7-amino coumarin compound having a trifluoromethyl group in the 4-position which is disolved in a liquid solvent for use as a lasing material. The compound may take the form of 7-diethylamino-4-trifluoromethylcoumarin, preferably dissolved in the liquid solvent p-dioxane. These compositions have been found to lase in the blue-green spectral region at approximately 481 nm wavelength, exhibiting greatly improved stability, particularly diminished photodecomposition under continuous high intensity, pulsed excitation conditions, as contrasted to previously known comparable liquid dye laser materials.

Descriptors :   *Patents, *Dye lasers, *Amines, *Laser materials, Visible spectra, Stability, High intensity, Photodecomposition, Pulsed lasers, Performance

Subject Categories : Organic Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE